I’m a patient at mayo clinic and I get tested every 6 mos to monitor my MGUS. My IGM white cells are at a low 15…(i believe thats the lowest allowed). IGM’S are said to be the main white blood cell to fight infection. I last took my bloodwork last month, and haven’t heard back if this is a concern. Previously as it has been dropping, I was told it was being crowded out out by unhealthy cells. Im verrrrry exhausted, and look like i have two black eyes. Thankfully no further progression in MGUS…thats all I know. I wasn’t able to see my oncologist after my bloodwork so I really don’t know what they think about this.